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Concept explainers
a.
Draw the graph of the data by using the given points.
a.
![Check Mark](/static/check-mark.png)
Explanation of Solution
Given: It is given in the question that the table shows the profits y (in millions of dollars) for Buffalo wild wings for each year x from
Graph:
Interpretation:
It has to be done in the way that all the coordinates should be put in the graphic utility and it gives the required graph for the points.
So ,the required is obtained above.
b.
Find the rear in which the profits showed the greatest and least increases by using the slopes.
b.
![Check Mark](/static/check-mark.png)
Answer to Problem 88E
The greatest increase is
Explanation of Solution
Given: It is given in the question that the table shows the profits y (in millions of dollars) for Buffalo wild wings for each year x from
Concept Used:
In this , use the concept of graph analysis that how to read the graph data and by this calculate the question.
Calculation:
Firstly , take the each year and calculate the slope and by this we easily get the lowest and the greatest.
YEARS | SLOPE |
So , by seeing the table we find that the greatest increase was during year
The greatest decrease was
Conclusion:
The greatest increase is
c.
Calculate the equation of the line between the years
c.
![Check Mark](/static/check-mark.png)
Answer to Problem 88E
The equation of the line between the years is
Explanation of Solution
Given:
It is given in the question that the table shows the profits y (in millions of dollars) for Buffalo wild wings for each year x from
Concept Used:
In this , use the concept of slope formula and point slope form the formula used is
Calculation:
By using the points
The slope is
Now,using the point slope form to get the equation:
Conclusion:
The equation is
d.
Identify the meaning of the slope of the line obtain from part (c).
d.
![Check Mark](/static/check-mark.png)
Answer to Problem 88E
The slope in the equation means that the average increase in profits in a year from
Explanation of Solution
Given:
It is given in the equation that the expression for the equation is
Concept Used:
In this, use the concept to read and understand the equation ,slope and get the answer from it.
Calculation:
The equation that get from part (b) is
Its slope is
The slope represents the average increase in profits in a year from
Conclusion:
The slope represents the average increase in profits in a year from
e.
Find the profit for Buffalo Wild Wings in
e.
![Check Mark](/static/check-mark.png)
Answer to Problem 88E
The approximate Profit of the Buffalo Wild Wings in
Explanation of Solution
Given:
It is given in the question that the table shows the profits y (in millions of dollars) for Buffalo wild wings for each year x from
Concept Used:
In this, use the concept of putting the value in the equation and finding the answer.
Calculation:
Here,in part (c) the equation will be
Now ,put
It is not accurate as the unpredicted factors like competition from other items or seasonal variations can affect the profit.
Conclusion:
The approximate profit is
Chapter 1 Solutions
Precalculus with Limits: A Graphing Approach
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